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F I G U R E 9 in Unravelling the taxonomy of an interstitial fish radiation: Three new species of Gouania (Teleostei: Gobiesocidae) from the Mediterranean Sea and redescriptions of G. willdenowi and G. pigra
F I G U R E 9 Gouania willdenowi (Risso 1810), PMR VP4574, neotype, male, 46.11+6.56 mm, Cagnes-sur-mer, Nice, France. Lateral view of specimen preserved in 4% formaldehyde (top). Lateral, dorsal and ventral view, alive (below). Photographs by M. Wagner and M. Kovacˇic
F I G U R E 1 0 in Unravelling the taxonomy of an interstitial fish radiation: Three new species of Gouania (Teleostei: Gobiesocidae) from the Mediterranean Sea and redescriptions of G. willdenowi and G. pigra
F I G U R E 1 0 Results of DNA-barcoding analyses. (a) Net between-group mean distances (mean and S.E.). The phylogeny shown in this figure is based on Wagner et al. (2019). (b) DNA-barcoding gap represented by boxplots showing maximum intraspecific and minimum interspecific divergences in %
F I G U R E 6 in Unravelling the taxonomy of an interstitial fish radiation: Three new species of Gouania (Teleostei: Gobiesocidae) from the Mediterranean Sea and redescriptions of G. willdenowi and G. pigra
F I G U R E 6 Gouania orientalis sp. nov., PMR VP4585, holotype, male, 32.8+4.93 mm, Plakias, Crete, Greece. Lateral view of specimen preserved in 4% formaldehyde (top). Lateral, dorsal and ventral view, alive (below). Photographs by M. Wagner and M. Kovacˇic
F I G U R E 8 in Unravelling the taxonomy of an interstitial fish radiation: Three new species of Gouania (Teleostei: Gobiesocidae) from the Mediterranean Sea and redescriptions of G. willdenowi and G. pigra
F I G U R E 8 Gouania pigra (Nardo, 1827), PMR VP3529, neotype, female, 43.12+5.03 mm, Glavotok, Krk, Croatia. Lateral view of specimen preserved in 4% formaldehyde (top). Lateral, dorsal and ventral view, alive (below). Photographs by M. Wagner and M. Kovacˇic
F I G U R E 5 in Unravelling the taxonomy of an interstitial fish radiation: Three new species of Gouania (Teleostei: Gobiesocidae) from the Mediterranean Sea and redescriptions of G. willdenowi and G. pigra
F I G U R E 5 Head osteology of Gouania species. (a) G. adriatica sp. nov. (PMR VP4618 – Holotype), (b) G. orientalis sp. nov. (PMR VP4585 – Holotype), (c) G. hofrichteri sp. nov. (ZSM-PIS- 047656 – Paratype), (d) G. pigra (Nardo 1827) (PMR VP3531 – Other material) and (e) G. willdenowi (Risso 1810) (ZSM-PIS-0476654 – Other material). Red, ceratobranchial 5; orange, premaxillary bone; blue, maxillary bone; green, nasal bone
F I G U R E 3 in Unravelling the taxonomy of an interstitial fish radiation: Three new species of Gouania (Teleostei: Gobiesocidae) from the Mediterranean Sea and redescriptions of G. willdenowi and G. pigra
F I G U R E 3 Gouania adriatica sp. nov., PMR VP4618, holotype, male, 41.41+6.77 mm, Stoja, Pula. Lateral view of specimen preserved in 4% formaldehyde (top). Lateral, dorsal and ventral view, alive (below). Photographs by M. Wagner and M. Kovacˇic
F I G U R E 4 in Unravelling the taxonomy of an interstitial fish radiation: Three new species of Gouania (Teleostei: Gobiesocidae) from the Mediterranean Sea and redescriptions of G. willdenowi and G. pigra
F I G U R E 4 Sucking discs and disc-papillae of Gouania species. (a) G. adriatica sp. nov. (PMR VP4618 – Holotype), (b) G. orientalis sp. nov. (PMR VP4585 – Holotype), (c) G. hofrichteri sp. nov. (PMR VP4595 – Holotype), (d) G. pigra (Nardo 1827) (ZSM-PIS-047649 – Other material) and (e) G. willdenowi (Risso 1810) (PMR VP4574 – Neotype). (f) Males of Gouania can have seemingly perfused prominent finger-like extensions on sucking disc edge in region A.A, B and C correspond to disc regions. Photographs by M. Wagner
F I G U R E 1 in Unravelling the taxonomy of an interstitial fish radiation: Three new species of Gouania (Teleostei: Gobiesocidae) from the Mediterranean Sea and redescriptions of G. willdenowi and G. pigra
F I G U R E 1 Geographical distribution ranges and ecology. (a) Distribution ranges of single Gouania species. The data shown are based on genetic, morphological and field observations as well as on historical findings mentioned by Hofrichter (1995) (all his records combined the species in G. willdenowi described here). Type and location of water currents are based on data provided by El-Geziry and Bryden (2010). Numbers 1–23 indicate sampling sites (compare with Supporting Information Table S1). (b) Female Gouania pigra (Nardo, 1827) in the interstitial of pebbles (photo taken in aquarium); see Supporting Information Video S1 for behaviour. (c) Trstenik (Pelješac, Croatia) – a site where G. pigra, G. adriatica sp. nov. and G. hofrichteri sp. nov. were found in sympatry. Photographs by M. Wagner
F I G U R E 1 0 in Three-dimensional migratory behaviour of European silver eels (Anguilla anguilla) approaching a hydropower plant
F I G U R E 1 0 Heatmap of search time for eels within 3 m of the bar rack for 53 attempts by 34 individual eels. Successful passes are shown on the left, and unsuccessful passes on the right. The hydraulic gate is located on the right side. The colours represent the proportion of search time in each zone, averaged over all attempts
F I G U R E 8 in Three-dimensional migratory behaviour of European silver eels (Anguilla anguilla) approaching a hydropower plant
F I G U R E 8 Upper: eel observations along four transects (a–d, with simulated relative water velocities). Observations are coloured by swimming direction. Lower: the density distribution of relative velocities at eel locations for upstream and downstream swimming, with the cross-section relative water velocity distribution in grey., downstream;, upstream;, cross-section
F I G U R E 7 in Three-dimensional migratory behaviour of European silver eels (Anguilla anguilla) approaching a hydropower plant
F I G U R E 7 Vertical and lateral eel distribution in river cross-sections in three parts of the river: the upstream river reach (river), the ponded forebay area (ponded) and the intake channel (channel) (see Figure 2a) for combinations of swimming directions and time of day. The observations are weighted by eel ground velocity and the colours represent scaled density
F I G U R E 5 in Three-dimensional migratory behaviour of European silver eels (Anguilla anguilla) approaching a hydropower plant
F I G U R E 5 Relative depth (a) and width (b) distribution of eels in the upstream river reach. The observations are grouped by eels moving downstream or upstream and by time of day. The observations are weighted by eel ground velocity, and the depth data are from the middle 90% of the river width. Situation:, downstream day;, downstream night;, upstream day;, upstream night
F I G U R E 4 in Three-dimensional migratory behaviour of European silver eels (Anguilla anguilla) approaching a hydropower plant
F I G U R E 4 Detection of eels entering the study area at the Herting hydropower plant grouped by inflow discharge and day/night, displayed as (a) number of eels and (b) eels per hour of current discharge., day;, night
F I G U R E 3 in Three-dimensional migratory behaviour of European silver eels (Anguilla anguilla) approaching a hydropower plant
F I G U R E 3 Schematics of a river cross-section: (a) natural model and (b) rectangular model. Relative depth is defined as zrel ¼ z=d and relative width as Wrel ¼ x=W, where W is the river width and d is the local depth
F I G U R E 1 1 in Three-dimensional migratory behaviour of European silver eels (Anguilla anguilla) approaching a hydropower plant
F I G U R E 1 1 Typical search patterns of eels along the intake screen at the Herting hydropower plant. Top, vertical view; bottom, plan view
F I G U R E 9 in Three-dimensional migratory behaviour of European silver eels (Anguilla anguilla) approaching a hydropower plant
F I G U R E 9 Distribution of first observations of eels closer than 3 m from bar rack at Herting hydropower plant: (a) horizontal distribution and (b) vertical distribution. Distributions are based on 41 observed interactions with the bar rack
F I G U R E 2 in Three-dimensional migratory behaviour of European silver eels (Anguilla anguilla) approaching a hydropower plant
F I G U R E 2 (a) The intake site at the Herting hydropower plant with migration routes available during the study period: a full-depth bypass next to the H1 powerplant and concrete weirs with a nature-like fishway. Location of hydrophones are shown in red. Areas to be analysed are denoted by blue dashed lines. (b) Detailed sketch of the angled rack and bypass at powerhouse H1
F I G U R E 1 in Three-dimensional migratory behaviour of European silver eels (Anguilla anguilla) approaching a hydropower plant
F I G U R E 1 Map of Sweden and the Ätran catchment, showing dams with or without fish passage solutions
F I G U R E 1 3 in Analysis of pigment cell composition, pigment content, tyrosinase content and activity of three kinds of loaches Misgurnus anguillicaudatus from Poyang Lake
F I G U R E 1 3 Tyrosinase content of three kinds of loaches (*means P <0.05, **means P <0.01). () BBL; () SBL; () NBL; () dorsal skin; () abdominal skin
F I G U R E 3 in Analysis of pigment cell composition, pigment content, tyrosinase content and activity of three kinds of loaches Misgurnus anguillicaudatus from Poyang Lake
F I G U R E 3 The distribution of skin pigment cells in abdomen of three kinds of loaches. (a) The abdominal epidermis of big blackspot loaches (BBL), (b) the abdominal epidermis of small blackspot loaches (SBL) and (c) the abdominal epidermis of non-blackspot loaches (NBL). The blue arrow refers to xanthophores. The magnification (a–c) is 80
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.